-25.41% is the change from 429 to 320
Calculation steps:
[( 320 - 429 ) ÷ 429] x 100 = -25.41%
Formula
Percentage change = [(320 - 429) / 429] x 100
Subtract the new number by the original number
320 - 429 = -109
-109 ÷ 429 = -0.2540792540792541
-0.2540792540792541 x 100 = -25.41%